Long-term soil fertility experiment under rice – Wheat cropping system in regional agricultural research station, parwanipur, bara, Nepal [printed text] / Shrestha, S., Author; Shrestha, G, Author; Sah, M.P., Author; Bhurer, K.P., Author; B. H. Adhikary, Author. - [s.d.]. - 166-173 p. in Monograph : printed text Proceedings of the Second National Soil Fertility Research Workshop, 24-25 March, 2015. Soil Science Division, NARC, Khumaltar, Lalitpur, Nepal / Karki, Krishna B.